结肠癌钡灌肠X线表现为：A肠管局限性增粗且有弹簧状粘膜纹B充盈缺损内可见大而扁的龛影C肠管不规则狭窄D肠腔内出现充盈缺损E病变区肠壁僵硬而蠕动消失